Arghhh!!!! I typed this all up and don't know exactly what I just did, but my answer disappeared while I was trying to make links to the cookooks! Now I have to type it all over again. But this time I'll not try to be fancy with the links. I'm sure you can find them without me.
The cake I found in a book I hadn't pulled out in years. It is a 1980 edition of Maida Heatter's Book of Great Chocolate Desserts. The Torta di Cioccolata was perfect. The technique was unusual. You grind the chocolate with the nuts, rather than melting and cooling the chocolate, but the result was great. It was dense, dark, and moist. I baked it in a 10 inch springform pan, instead of the 8 inch pan called for, since I only wanted it about an inch tall. Be sure to adjust your baking time for the bigger pan.
The filling was a little more difficult. I couldn't find an actual candy filling, but I did find a topping for a Coconut Candy Bar Cheesecake in the Bon Appetit Cookbook, which seemd to have all the basics. I wanted it thick & chewy, so I replaced the sour cream with a couple tablespoons of butter and a couple ounces of melted & cooled white chocolate. This made the filling firmer. I also skipped the added sugar. It certainly didn't need it. And mix it by hand, not in the food processor to keep the texture of the coconut intact.
The topping was the easiest part. I love the dark chocolate of a Mounds Bar more than the milk chocolate, so I used the Dark Chocolate Ganache Glaze from Fran Bigelow's Pure Chocolate. It was the ideal chocolate covering. I'm sure if you want the milk chocolate, you can find a different recipe.
Bake the cake in a springform pan. When completely cool, remove to a cardboard circle. Spread coconut evenly over the top. Set the cake on a rack over a shallow rimmed pan, and pour the glaze over it. Let it set up a bit.
To add my own touch, not in the picture I've been drooling over, I coarsely broke up some sliced almonds and pressed tham into the sides. It not only made a real pretty finishing touch, it helped hide my less-than-stellar glazing technique.
For several years, I've been drooling over just an internet picture. I finally got to taste it. It was definitely worth the wait! Thanks EYB - I never would have discoverd the pieces without you!
Edited to add:
I don't know how to post a picture here, but if anyone is interested, here's a link to where I posted one on a forum.